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NM_000218.3(KCNQ1):c.752T>C (p.Leu251Pro) AND Congenital long QT syndrome

Germline classification:
not provided (1 submission)
Review status:
no classification provided
Somatic classification
of clinical impact:
None
Review status:
(0/4) 0 stars out of maximum of 4 stars
no assertion criteria provided
Somatic classification
of oncogenicity:
None
Review status:
(0/4) 0 stars out of maximum of 4 stars
no assertion criteria provided
Record status:
current
Accession:
RCV000057748.4

Allele description [Variation Report for NM_000218.3(KCNQ1):c.752T>C (p.Leu251Pro)]

NM_000218.3(KCNQ1):c.752T>C (p.Leu251Pro)

Gene:
KCNQ1:potassium voltage-gated channel subfamily Q member 1 [Gene - OMIM - HGNC]
Variant type:
single nucleotide variant
Cytogenetic location:
11p15.5
Genomic location:
Preferred name:
NM_000218.3(KCNQ1):c.752T>C (p.Leu251Pro)
Other names:
p.L251P:CTG>CCG
HGVS:
  • NC_000011.10:g.2572081T>C
  • NG_008935.1:g.132091T>C
  • NM_000218.3:c.752T>CMANE SELECT
  • NM_001406836.1:c.752T>C
  • NM_001406837.1:c.482T>C
  • NM_181798.2:c.371T>C
  • NP_000209.2:p.Leu251Pro
  • NP_000209.2:p.Leu251Pro
  • NP_001393765.1:p.Leu251Pro
  • NP_001393766.1:p.Leu161Pro
  • NP_861463.1:p.Leu124Pro
  • NP_861463.1:p.Leu124Pro
  • LRG_287t1:c.752T>C
  • LRG_287t2:c.371T>C
  • LRG_287:g.132091T>C
  • LRG_287p1:p.Leu251Pro
  • LRG_287p2:p.Leu124Pro
  • NC_000011.9:g.2593311T>C
  • NM_000218.2:c.752T>C
  • NM_181798.1:c.371T>C
  • NR_040711.2:n.645T>C
Protein change:
L124P
Links:
dbSNP: rs199472716
NCBI 1000 Genomes Browser:
rs199472716
Molecular consequence:
  • NM_000218.3:c.752T>C - missense variant - [Sequence Ontology: SO:0001583]
  • NM_001406836.1:c.752T>C - missense variant - [Sequence Ontology: SO:0001583]
  • NM_001406837.1:c.482T>C - missense variant - [Sequence Ontology: SO:0001583]
  • NM_181798.2:c.371T>C - missense variant - [Sequence Ontology: SO:0001583]

Condition(s)

Name:
Congenital long QT syndrome (RWS)
Synonyms:
Familial long QT syndrome; Romano-Ward syndrome; Ventricular fibrillation with prolonged QT interval
Identifiers:
MONDO: MONDO:0019171; MedGen: C1141890; Orphanet: 768; OMIM: PS192500

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Assertion and evidence details

Submission AccessionSubmitterReview Status
(Assertion method)
Clinical Significance
(Last evaluated)
OriginMethodCitations
SCV000089267Cardiovascular Biomedical Research Unit, Royal Brompton & Harefield NHS Foundation Trust
no classification provided
not providedgermlineliterature only

PubMed (3)
[See all records that cite these PMIDs]

Summary from all submissions

EthnicityOriginAffectedIndividualsFamiliesChromosomes testedNumber TestedFamily historyMethod
not providedgermlineunknownnot providednot providednot providednot providednot providedliterature only

Citations

PubMed

A novel mutation in KVLQT1, L122P, found in a family with autosomal dominant long QT syndrome.

Krahn AD, Wang J, Spindler B, Skanes AC, Yee R, Klein GJ, Hegele RA.

Am Heart J. 2000 Jul;140(1):146-9.

PubMed [citation]
PMID:
10874277

Biophysical characteristics of a new mutation on the KCNQ1 potassium channel (L251P) causing long QT syndrome.

DeschĂȘnes D, Acharfi S, Pouliot V, Hegele R, Krahn A, Daleau P, Chahine M.

Can J Physiol Pharmacol. 2003 Feb;81(2):129-34.

PubMed [citation]
PMID:
12710526
See all PubMed Citations (3)

Details of each submission

From Cardiovascular Biomedical Research Unit, Royal Brompton & Harefield NHS Foundation Trust, SCV000089267.3

#EthnicityIndividualsChromosomes TestedFamily HistoryMethodCitations
1not providednot providednot providednot providedliterature only PubMed (3)

Description

This variant has been reported as associated with Long QT syndrome in the following publications (PMID:10874277;PMID:12710526). This is a literature report, and does not necessarily reflect the clinical interpretation of the Imperial College / Royal Brompton Cardiovascular Genetics laboratory.

#SampleMethodObservation
OriginAffectedNumber testedTissuePurposeMethodIndividualsAllele frequencyFamiliesCo-occurrences
1germlineunknownnot providednot providednot providednot providednot providednot providednot provided

Last Updated: Sep 29, 2024